1 # Baris Metin <tmetin@sophia.inria.fr>
6 from PLC.Slices import Slices
7 from PLC.SliceTags import SliceTags
8 from PLC.Nodes import Nodes
9 from PLC.Config import Config
10 from pyaspects.meta import MetaAspect
13 class BaseOMF(object):
16 self.config = Config("/etc/planetlab/plc_config")
17 self.log = open("/var/log/omf/plc_slice_calls.log", "a")
19 def logit(self, call, args, kwargs, data, slice):
20 self.log.write("%s : args: %s kwargs: %s\n" % (call, args, kwargs))
21 self.log.write("data: %s\n" % data)
22 self.log.write("%s\n\n" % slice)
26 def get_slice(self, api, id_or_name):
29 slice_filter['slice_id'] = int(str(id_or_name))
32 slice_filter['name'] = id_or_name
33 slice = Slices(api, slice_filter = slice_filter)[0]
34 # don't bother to check for slice tags for the moment. we'll only
35 # create XMPP pubsub groups for all slices
37 # slice_tags = SliceTags(api, slice_tag_filter = { 'slice_id': slice['slice_id'] })
38 # omf_tag = [tag for tag in slice_tags if tag['name'] == 'omf']
39 # if omf_tag and omf_tag['value'] not in ('false','0','no'):
40 # # OK, slice has the "omf" tag set.
45 def get_node_hostname(self, api, node_id):
46 node_filter = {'node_id': node_id }
48 node = Nodes(api, node_filter = node_filter)[0]
49 return node['hostname']
53 def get_slice_tags(self, api, slice_id):
54 return SliceTags(api, slice_tag_filter = {'slice_id': slice_id})
56 def create_slice(self, slice):
59 def add_resource(self, slice, resource):
62 def delete_slice(self, slice):
65 def delete_resource(self, slice, resource):
69 def before(self, wobj, data, *args, **kwargs):
70 api_method_name = wobj.name
71 slice_name_or_id = None
74 # DeleteSlice shall be handled before the actual method call;
75 # after the call we won't be able to acess the slice.
76 if api_method_name == "DeleteSlice":
77 slice_name_or_id = args[1]
78 else: # ignore the rest
81 slice = self.get_slice(wobj.api, slice_name_or_id)
85 if api_method_name == "DeleteSlice":
86 self.delete_slice(slice['name'])
88 self.logit(wobj.name, args, kwargs, data, slice)
91 def after(self, wobj, data, *args, **kwargs):
92 api_method_name = wobj.name
93 slice_name_or_id = None
95 if api_method_name == "AddSlice":
96 slice_name_or_id = args[1]['name']
97 elif api_method_name == "AddSliceToNodes" or api_method_name == "DeleteSliceFromNodes":
98 slice_name_or_id = args[1]
100 else: # ignore the rest
101 #self.logit(wobj.name, args, kwargs, data, "SLICE")
104 slice = self.get_slice(wobj.api, slice_name_or_id)
108 if api_method_name == "AddSlice":
109 self.create_slice(slice['name'])
110 elif api_method_name == "AddSliceToNodes":
111 for node_id in node_ids:
112 node_hostname = self.get_node_hostname(wobj.api, node_id)
113 self.add_resource(slice['name'], node_hostname)
114 elif api_method_name == "DeleteSliceFromNodes":
115 for node_id in node_ids:
116 node_hostname = self.get_node_hostname(wobj.api, node_id)
117 self.delete_resource(slice['name'], node_hostname)
119 self.logit(wobj.name, args, kwargs, data, slice)
123 class OMFAspect_xmlrpc(BaseOMF):
124 __metaclass__ = MetaAspect
125 name = "omfaspect_xmlrpc"
128 BaseOMF.__init__(self)
130 slicemgr_url = self.config.PLC_OMF_SLICEMGR_URL
131 self.server = xmlrpclib.ServerProxy(slicemgr_url)
133 def create_slice(self, slice):
134 self.server.createSlice(slice)
136 def add_resource(self, slice, resource):
137 self.server.addResource(slice, resource)
139 def delete_slice(self, slice):
140 self.server.deleteSlice(slice)
142 def delete_resource(self, slice, resource):
143 self.server.removeResource(slice, resource)
145 def before(self, wobj, data, *args, **kwargs):
146 BaseOMF.before(self, wobj, data, *args, **kwargs)
148 def after(self, wobj, data, *args, **kwargs):
149 BaseOMF.after(self, wobj, data, *args, **kwargs)
153 OMFAspect = OMFAspect_xmlrpc